document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1028260>Question 1028260</A>: <I><SPAN STYLE=\"word-break: break-all;\"> When a ball is served, consider the trajectory of ball modelled by equation y=-x^2/8 + 9x/8 +5/4.  Find the height of the ball when it is 3m horizontally from where served. (Y represents height of ball in metres above ground and x represents horizontal distance from when ball was struck).\r<BR>\n" );
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document.write( "I believe 5/4 (y intercept)represents the initial height and that the ball travels 10m (x intercept) but I'm  stuck with how to calculate the height after 3 metres.<BR>\n" );
document.write( "any help/advice would be great<BR>\n" );
document.write( "Thanks </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #643403 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=643403\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> When a ball is served, consider the trajectory of ball modelled by equation y=-x^2/8 + 9x/8 +5/4.<BR>\n" );
document.write( "Find the height of the ball when it is 3m horizontally from where served.<BR>\n" );
document.write( " (Y represents height of ball in metres above ground and x represents horizontal distance from when ball was struck).<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=-x%5E2%2F8+%2B+%289x%29%2F8+%2B+5%2F4 ALIGN=MIDDLE  ALT=\"y=-x%5E2%2F8+%2B+%289x%29%2F8+%2B+5%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "find y when x=3<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=-3%5E2%2F8+%2B+%289%2A3%29%2F8+%2B+5%2F4 ALIGN=MIDDLE  ALT=\"y=-3%5E2%2F8+%2B+%289%2A3%29%2F8+%2B+5%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=-9%2F8+%2B+27%2F8+%2B+5%2F4 ALIGN=MIDDLE  ALT=\"y=-9%2F8+%2B+27%2F8+%2B+5%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=+18%2F8+%2B+5%2F4 ALIGN=MIDDLE  ALT=\"y=+18%2F8+%2B+5%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=+9%2F4+%2B+5%2F4 ALIGN=MIDDLE  ALT=\"y=+9%2F4+%2B+5%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=+14%2F4 ALIGN=MIDDLE  ALT=\"y=+14%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "y = 3.5 meters is the height </SPAN>\n" );
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